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Urinary Tract InfectionsrUTINCT06482151

Evaluation of the Prevalence of E. Coli O Serotypes in Paediatric Population With Recurrent Urinary Tract Infection

An observational study of Urinary Tract Infections, run by PENTA Foundation.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This is a multicentre, observational, epidemiological study in which infants within the first 3 months of life with UTI and children aged ≥4 months with r-UTI will be recruited from nephrology /emergency departments and primary care in European countries Read more about this study

Who is it for?
Ages Up to 17 years
Conditions the study is for
Urinary Tract Infections
How many people
0 participants
Where
No sites listed yet
Study dates
11 Mar 2025to 11 Mar 2025
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Study population: Infants 0 to < 4 months months of life with a presumptive UTI and children ≥4 months to < 18years with a presumptive recurrent UTI evaluated at participating sites will be eligible for the study if they fulfill all the criteria for suspected UTI diagnosis.

Who may be able to join

  • Age between 0 weeks and 17 years
  • Significant urine culture positive only for E. coli
  • For infants up to 3 months of age, a confirmed first UTI episode as identified by urine culture obtained by a sterile method (as described above) and positive for E. coli only (no other pathogens)
  • For children ≥4 months to < 18 years a confirmed rUTI episode as identified by urine culture obtained by a sterile method (as described above) and positive for E. coli only (no other pathogens)
  • Collection of urine culture with a sterile method (suprapubic aspiration, bladder catheterization, clean voided urine)
  • Signed informed consent form (signed by participant's legally authorized representative for participants who have not attained the age of majority)
  • Signed Assent Form when appropriate, as determined by participant's age and individual site and country standards

Who cannot join

  • Patients ≥18 years
  • Children ≥ 4 months of age with a first UTI episode
  • Absence of microbiological confirmation of UTI
  • UTI caused by bacteria other than E. coli or polymicrobial culture
  • Urine collected with a non-sterile method (urinary bag)
  • UTI episode within 30 days of the end of antibiotic treatment for the previous UTI episode
  • Second urine positive for E. coli during the same episode
  • Patients in the active phase of anticancer treatment

About this study

Official title: Evaluation of the Prevalence of E. Coli O Serotypes in Paediatric Population With Recurrent Urinary Tract Infection in Europe

This is a multicentre, observational, epidemiological study in which infants within the first 3 months of life with UTI and children aged ≥4 months with r-UTI will be recruited from nephrology /emergency departments and primary care in European countries

Read the detailed description

This is an international, multicenter, observational, cross-sectional epidemiological study.

Study participants will undergo a screening phase and will be checked for study eligible and inclusion/exclusion criteria at study entry. No other visits will be conducted other than the first evaluation. The study will be conducted across up to 26 participating sites in Europe, including nephrology departments, paediatric emergency departments and primary care centers. Specifically, sites located more in Western and Eastern Europe will be involved in the study. In total, 600 participants with rUTI (UTI) will be included in this study, with approximately 200 participants for each age group (from 0 months to < 3 years of age; from ≥ 3 to < 12 years of age, from ≥ 12 to < 18 years of age).

Keywords
urinary tract infections, recurrent urinary tract infections, infants, adolescents, Escherichia coli
Medical subject headings
Urinary Tract Infections, Escherichia coli Infections

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To assess the serogroups of E. coli in the study cohort

    The distribution [N (%)] of serotypes of E. coli in the study cohort will be evaluated separately for infants with UTI and children with r-UTI. Moreover, it will be evaluated separately for countries and age classification.

    Measured: January 2027

Secondary outcomes (4)
  1. To assess the clinical profile, especially comorbidities, of children with UTI and rUTI

    The comorbidity profiles of children with urinary tract infections (UTIs) and recurrent UTIs (rUTIs) will be characterize using descriptive statistics. This will involve presenting the frequency and percentages [N (%) with Clopper-Pearson confidence interval] for each comorbidity within each group.

    Measured: January 2027

  2. • To assess the O-serotype distribution among drug-resistant E. coli, including multidrug resistant (MDR)

    The number and percent (N [%]) of each O-serotype resistant to 0, 1, 2, 3, 4, and 5 antibiotic classes will be assessed. Antimicrobial susceptibility testing will use broth microdilution. Antibiotic panels will include antibiotics from 5 antimicrobial drug classes. Antibiotic resistance will be determined using minimal inhibitory concentration values and susceptibility criteria defined by either the Clinical and Laboratory Standards Institute (CLSI) or the European Committee on Antimicrobial Susceptibility Testing (EUCAST).

    Measured: January 2027

  3. To characterize drug resistance across O-serotypes of E. coli isolates that cause rUTIs in children

    The resistance to representative antibiotics in the following 5 classes: aminoglycosides, cephalosporins, fluoroquinolones, β-lactam/β-lactamase inhibitors, and sulfonamides will be reported. Based on these 5 classes (and representative antibiotics), the multidrug-resistant will be defined as isolates that were resistant to ≥3 of the 5 antibiotic classes listed. Resistance to last-resort antibiotics, carbapenems (doripenem, ertapenem, imipenem, and meropenem) and colistin will also be examined using Clinical and Laboratory Standards Institute breakpoints for minimum inhibitory concentration values.

    Measured: January 2027

  4. To evaluate the genetic characteristics of E. coli of children with r-UTI (WGS)

    O genotyping will be conducted based on whole-genome sequencing, which will allow assessment of O-serotype at the genetic sequences level, following guidelines and using reference sequences described elsewhere (DebRoy et all 2016) . For isolates that either do not show a match or match with multiple known O serotypes, the O genotype will be designated as "non-determined." (Iguchi et al, 2014 ) All the evaluations will be performed overall and across countries and age categorizations. Moreover, the Kappa of Cohen will be used to assess the degree of agreement of the results between local laboratories and Central laboratory.

    Measured: January 2027

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jul 2024
  2. Study start11 Mar 2025
  3. Primary completion11 Mar 2025
  4. Study completion11 Mar 2025

Why it stopped: Study terminated by the Funder

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06482151
Sponsor's protocol ID
rUTI
Acronym
rUTI
Status last verified
Apr 2025
First submitted
25 Jun 2024
Last updated
18 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Urinary Tract Infections, run by PENTA Foundation.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 18 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To assess the serogroups of E. coli in the study cohort (time frame: January 2027). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Apr 2025.

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